Jacob m



@eine gisten gamut @fitta Lettere Patent No. 82,185, dated September 15, 1868.

l IMPROVED POST-HOLE BOBER.

tite .Stimme nient tu im tlgrse rtters flttestant making part tf 'tige sante.

Be it known that we, JACOB M. WALTER and' SAMUEL SHANK, of Springfield, in the county of Clark, and State of Ohio, have invent-ed a new and useful Improvement -in Ground-Auger Machines; and we dohereby declare that the following is a full, clear, and exact description thereof, which'jvll enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part ofl this specifi cation, in which- 1 Figure 1 is a sectional elevation of our invention.

Figure 2 is a sectional elevation of the same, taken at right angles to that of fig. 1.

Figure 3 is a detail section of the adjustable axle. i

Similar letters of reference indicate corresponding parts.

The object of this invention lis to provideiamachine for boring post-holes in the ground, which is elfective, easily and conveniently operated, andadjustable to operate upon side hills.

It consists of a hinged auger-shaft, whereby the earth lifted by the auger may hel conveniently deposited away from the hole, together with windlass-an'd-cord mechanism, for lifting the auger-shaft vertically from the hole. A

It further consists in the form of the Vboring-dish, and hinged or pivoted uprights, supporting the boring and lifting-mechanism, the said uprights vibrating in contact with slotted semicircnlar plates affixed to the bedframe of the machine, which serve, in conjunction with clamp-burrs and screw-studs on the uprights, to adjust the uprights and the auger-shaft in a vertical position, when the hole is to be bored ou a side hill, and the bed` frame is necessarily inclined from the horizontal.

Other devices, perfecting the whole, render this machine convenient and eeetive, and capable of being used with advantage in level and inclined ground.`

In the accompanying drawings, A is the bed-frame, mounted on the wheels B, the axles of which are adjustable up or down, to adapt the bed-frame to inequalities ofthe ground, or to the incline of the same.

The axle a isatlixed to a metallic block, b, which slides, with easy contact, inthe cavity of the hollow block C, aixed, in any suitable manner, to the bed-frame, as shown. The axle a is provided with a nut, d, for clamping the same at any part of the slot in which the said axle moves. A

The uprights G are hinged to the bed-frame by. hinges L,-or other suitable device, and may be vibrated between theslotted semicircular plates D D, to maintain the auger in vertical position, when the bed-frame rests on a slope or side hill.

The threaded bolts `g g pass through the uprights and the slots, e, in the plates D, and are provided with burrs, E, to clamp the uprights at any point on the plates.

The uprights are connected, near the top, by cross-braces, J K, which serve to support the auger-shaftf and its operating-mechanism.

The nugershat't is jointed by means of a tongue, s, in one part, and corresponding jaws in the other, into which the tongue fits, as shown. The object of this device is to enable the boring-disk, when lifted from the hole with earth upon it, to be swungputvlaterally, thereby depositing the earth upon the ground nar the hole.

The tongue and jaws are formed with two sets of holes, the upper set being for a bolt, t, and the lower for a pin, t', which latter is removed when required, and the lower part of the shaft permitted to swing upon the bolt t, as a pivot, in depositing the earth. l

The augershaft is'revolved by means of bevel-gear k m, and a crank, II, the shaft of which has its principal bearing in'the` plate m, and'bea-rs the bevel-pinion Z, which serves to apply the power.

A similar shaft, plate, crank, and pinion may be placed on' the opposite side of the upright frame G K J, if Y two cranks are required.

The wheel k rests on the roller u. This wheel is not aiiixed to the shaftf, but slides freely on it, being held from revolving on it by a set-screw passing through the hub-sleeve of the wheel,.the front of which setscrew works in a slot, z', in the shaft,'or other equivalent device for the purpose. By this device, the shaft may be raised, to lift the earth from the hole, without interrupting the gearing, for the pinion and roller serve to keep the wheel c in place.

The shaft is lifted by means of aV windlass-druru, I, bearing in a suitable plate, as shown. This drum is provided with a crank-handle, M, and a, ratchet-and-pawl device, -n o, as shown, and to this drum the cordspp, connecting with the arm q, are Wound.

The arm q works loosely on the auger-shaft, being held in place thereon by bosses r r, set on the shaft.

The cords pass through a guide-plate, It, aixed to the crossrlbrace K.

The boring-disk consists of the usual helical plates or wings, provided with vertical tapering flanges or edges, c c, which are sharpened, and act effectively in cutting away roots.

Having thus described our invention, we claim as new, and desire to secure by Letters Patent- 1. The arrangement, within the frame G J K, hinged, at L, to the main frame, of the jointed shaftff, bearing the auger, the arm g, and bevelled-gear wheel k, adapted to turn with and move longitudinally on said shaft, pinion Z, on crank-'shaft H, windlass I, cords p, ratchet-wheel n, pawl o, and crank M,lall constructed and arranged to operate in themanner and for the purpose herein set forth and shown.

2.' The hollow blocks C, fixed to frame A, and adapted to receive the head, b, of axle a, on which the wheel B is held by means of nut d, as herein show n and described; for the purpose specied.

JACOB M. WALTER, Y SAMUEL SHANK.

Witnesses: y

JAMES TURNER, W. H. Sreimn. 

